Invention Grant
- Patent Title: Process for preparing acrylic acid from formaldehyde and acetic acid
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Application No.: US15348460Application Date: 2016-11-10
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Publication No.: US09771314B2Publication Date: 2017-09-26
- Inventor: Marco Hartmann , Lukas Schulz , Nicolai Tonio Woerz , Yong Liu , Till Christian Brueggemann , Michael Lejkowski , Johannes Lieberknecht
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE102015222180 20151111
- Main IPC: C07C51/353
- IPC: C07C51/353 ; C07C57/04 ; C07C51/347 ; B01J27/198 ; B01J29/70 ; B01J35/00 ; B01J35/10 ; C07C51/43
Abstract:
The invention relates to a process for preparing acrylic acid from formaldehyde and acetic acid, comprising (i) providing a gaseous stream S1 comprising formaldehyde, acetic acid and acrylic acid, where the molar ratio of acrylic acid to the sum total of formaldehyde and acetic acid in stream S1 is in the range from 0.005:1 to 0.3:1; (ii) contacting stream S1 with an aldol condensation catalyst in a reaction zone to obtain a gaseous stream S2 comprising acrylic acid.
Public/Granted literature
- US20170129841A1 PROCESS FOR PREPARING ACRYLIC ACID FROM FORMALDEHYDE AND ACETIC ACID Public/Granted day:2017-05-11
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